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ME429_Fall_2009_HW6[1]

# ME429_Fall_2009_HW6[1] - Assigned on 23.11.2009 Monday Due...

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Assigned on 23.11.2009 Monday Due date 03.12.2009 Thursday, beginning of the lecture ME429 Fall 2009 HW6 You are expected to provide clear explanation of each step in your solution, units, well annotated scaled plots (title, axis labels, units, . .), not random hand sketches, source code attached to your solution if you use a software package. 1) An electromagnetic type accelerometer has an equivalent mass of 20 grams and equivalent stiffness of 500 kN/m. The accelerometer will be used to measure the oscillations at a certain location of a car body and it is desired to make measurements up to 250 Hz with a maximum allowable error of 1%. What should be the damping ratio of this accelerometer? 2) A water tank is subjected to the given periodic forcing. a) Find the Fourier series expansion of F ( t ). Then, plot it on the same graph with the original function taking 5 terms only. b) Find the Fourier series representation of the response x ( t ) and plot on a separate graph . c)

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ME429_Fall_2009_HW6[1] - Assigned on 23.11.2009 Monday Due...

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